HuagongsheHuagongshe Chemistry Print Report · For research reference only
Pyridine → HCID 89442828, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Pyridine | HCID 1049 | — |
| Reactant | O-Methylhydroxylamine hydrochloride | HCID 521874 | — |
| Reactant | HCID 89442804 | HCID 89442804 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 89442828 | HCID 89442828 | 22% |
Reaction Steps
To a solution of (2R,3 R,4R,5S,65)-2-(acetoxymethyl)-6-(4-chloro-3-(4-(2-oxoethyl)benzyl)phenyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate (0.35 mg, 0.61 mmol), in ethanol (10 mL) under nitrogen atmosphere, were added pyridine (0.24 mL, 3.04 mmol), and O-methylhydroxylamine hydrochloride (151 mg, 1.82 mmol). The reaction mixture was refluxed for 2 h. After completion of the reaction as confirmed by TLC, the solvent was evaporated. The crude compound was diluted with ethyl acetate (25 mL). The organic layer was washed with water (3×10 mL), dried over Na2SO4 and concentrated in vacuo to afford crude product which was purified by column chromatography (silica gel, 1.0:9.0 Acetone:Pet. Ether) to afford the title compound (80 mg, 22%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09018249B2 |
| Source dataset | uspto-grants-2015_04 |
| ORD ID | ord-57c0f910c83b4824ab1a0bac45b8417f |
| Source note | uspto-grants-2015_04 |